JP3209093U - Package case and electronic device including the package case - Google Patents

Abstract

A package case capable of improving work efficiency in an assembly process is provided. In a package case 6 having a case body 4 that can accommodate an electronic component 3 having a linear lead 312 and a terminal 5 that can be electrically connected to the lead 312, the case body 4 has a plate-like shape. A bottom plate 41 and a peripheral wall 40 that protrudes from the periphery of the bottom plate 41 and surrounds a space in which the electronic component 3 can be accommodated together with the bottom plate 41. In addition, a perforation penetrating from the connection end surface 4230 to the bottom plate 41 is formed, and the terminal 5 is attached to the peripheral wall 40 and covers at least a part of the opening in the connection end surface 4230 of the perforation at the connection end surface 4230 of the peripheral wall 40. And an inscribed portion 53 provided with a terminal opening 531 communicating with the corresponding perforation. [Selection] Figure 3

Description

  The present invention relates to an electronic device, and more particularly to an electronic device on which a coil component is mounted and a package case thereof.

  Examples of conventional electronic devices on which coil components are mounted include those shown in FIGS. 1 and 2. FIG. 1 is a perspective view showing a configuration of a conventional electronic device, and FIG. 2 is a main part showing a connection between a coil component 2 (described later) and a terminal 12 (described later) in the conventional electronic device. It is sectional drawing.

  A conventional electronic device includes a case body 11, a plurality of coil components 2 housed in the case body 11, and a plurality of terminals 12 that are attached to the case body 11 and electrically connected to the coil components 2. It is.

  The case main body 11 includes a bottom plate 111 formed in a rectangular plate shape, and two pairs of side walls 114 formed so as to protrude from the four peripheral edges of the bottom plate 111 and to form an accommodation space 112 together with the bottom plate 111. And two connection seat walls 115 projecting from the pair of front ends of the two pairs of side walls 114 to the outside, which is opposite to the accommodation space 112, and the edges of the side walls 114 to which the connection seat walls 115 are connected And a plurality of partition walls 117 projecting so as to open the connection grooves 118. The case body 11 is made of a material such as plastic.

  Each terminal 12 is attached to the bottom plate 111 side of a pair of side walls 114 in which a connection seat wall 115 is formed. As shown in FIG. 2, each terminal 12 is connected to the outside along the bottom surface of the connecting groove 118 of the corresponding connecting seat wall 115 and the circumscribed portion 121 protruding from the bottom plate 111 side of the side wall 114 to the outside of the case body 11. A projecting inscribed portion 122.

  Each coil component 2 is electrically connected to the annular frame 22 accommodated in the accommodation space 112 and the inscribed portion 122 of the terminal 12 wound around the frame 22 and having its end 213 positioned on the bottom surface side of the connection groove 118. It has a linear lead 21 to be connected. In addition, as each lead 21, the magnet wire which gave the electrical insulation coating in order to prevent a short circuit is used.

When assembling a conventional electronic device, first, a flame is applied to the end portion 213 of the lead 21 constituting each coil component 2 to remove the electrically insulating coating of the end portion 213, and then the housing space 112 of the case body 11. The end portion 213 of each lead 21 is pulled out to the connection groove 118 of the corresponding connection seat wall 115, and the inscribed portion 122 of the terminal 12 and each lead 21 are connected via the connection groove 118 by means such as soldering. Created by electrical connection.

  However, in the conventional electronic device, since the material used for the case body 11 is usually weak to fire, when assembling, the end portion 213 of the lead 21 in each coil component 2 must first be exposed to fire. In this case, since it cannot be accommodated in the case main body 11 and subsequent work cannot be performed, it takes time to assemble.

  In view of the above problems, an object of the present invention is to provide a package case capable of improving work efficiency in an assembly process and an electronic device including the package case.

  In order to achieve the above object, a package case of the present invention includes a case body that can accommodate an electronic component having a linear lead, and a terminal that can be electrically connected to the lead of the electronic component to be accommodated. The case body has a plate-like bottom plate on which electronic components can be placed, and a peripheral wall that protrudes from the periphery of the bottom plate and surrounds a space in which the electronic components can be accommodated together with the bottom plate. A perforation penetrating from the connection end surface to the bottom plate is formed at the tip projecting from the bottom plate, and the terminal is attached to the peripheral wall, and from the bottom plate to the outside of the case body Covering at least a part of the opening at the connection end surface of the perforation at the connection end surface of the peripheral wall and the projecting circumscribed portion and communicating with the corresponding perforation Has a internal portion the child opening is provided, the.

  And the electronic device of the present invention has the package case, an electronic component that has a linear lead electrically connected to the terminal of the package case, and is accommodated in the case body, It has.

  According to the above configuration, in the package case of the present invention and the electronic device including the package case, the perforation penetrating from the connection end surface of the peripheral wall to the bottom plate is formed, and the terminal communicates with the perforation. Since the terminal opening is provided, after the electronic component is accommodated in the case body, the end of the lead is once disposed in the terminal opening of the corresponding terminal, and then pinpoint heating such as laser is performed. Heat the location across the perforation of the lead via either side of the perforation using possible means to remove the electrically insulating coating at that location and then secure the end of the lead to the terminal In addition, since the electrical connection is completed, the case body is not damaged and the working time in the assembly process can be shortened.

It is the perspective view by which the conventional electronic device is shown. It is principal part sectional drawing by which the conventional electronic device is shown. 1 is an exploded perspective view showing an electronic device of the present invention. It is a perspective view of another viewpoint in which the package case in the electronic device of the present invention is shown. It is a top view in which the package case of the present invention is shown. It is principal part sectional drawing by which the state in which the lead | read | reed was connected to the terminal in the package case of this invention is shown. It is a principal part perspective view by which the process of installing the lead of the electronic component in the package case in the electronic device of this invention is shown. (A) It is principal part sectional drawing by which the connection process which hold | maintains the lead of the electronic component in the package case in the electronic device of this invention is shown. (B) It is principal part sectional drawing by which the heating process of the lead in the package case of this invention is shown. (C) It is principal part sectional drawing by which the connection process of the lead | read | reed and terminal of this invention is shown.

  Hereinafter, the package case of the present invention and the electronic apparatus including the package case will be described in detail with reference to FIGS. FIG. 3 is an exploded perspective view showing an embodiment of the electronic device of the present invention, FIG. 4 is a perspective view showing another embodiment of the electronic device of the present invention, and FIG. 6 is a plan view showing the configuration of the package case, and FIG. 6 is a cross-sectional view of the main part showing a state in which leads are connected to terminals in the package case.

  As shown in FIG. 3, the electronic device of the present invention includes a package case 6 of the present invention and an electronic component 3 such as a plurality of coil components housed in the package case 6.

  The package case 6 of the present invention includes a case main body 4 that can accommodate each electronic component 3, and a plurality of terminals 5 that are attached to the case main body 4 and can be electrically connected to each electronic component 3.

  The case body 4 is made of an electrically insulating material such as plastic. The case body 4 includes a plate-like bottom plate 41 on which each electronic component 3 is placed, and a peripheral wall 40 that protrudes from the peripheral edge of the bottom plate 41 and surrounds the accommodation space 44 that accommodates each electronic component 3 together with the bottom plate 41. Yes.

  As shown in FIG. 5, the bottom plate 41 extends along a predetermined first direction X1 and is parallel to each other, and a pair of first side edges 411 that are substantially orthogonal to the first direction X1. It is formed in a substantially parallelogram (in this embodiment, a rectangle) having a pair of second sides 412 extending along the second direction X2 and parallel to each other.

  As shown in FIG. 4, the peripheral wall 40 includes a pair of connection walls 42 formed so as to protrude from the pair of first side edges 411 of the substantially parallelogram, and a pair of second walls. And a pair of side walls 43 formed so as to protrude from the side edges 412 of the respective sides.

  As shown in FIG. 3, each connection wall 42 is substantially parallel to the bottom plate 41, and a connection end 423 formed on the opposite side of the connection wall 42 from the bottom plate 41, and an inner wall substantially orthogonal to the connection end 423. 421 (FIG. 5) and an outer wall 422, a plurality of isolation projections 424 protruding from the connection end 423, and a plurality of outer holding portions 425 formed outside the plurality of isolation projections 424. A perforation 420 (see FIG. 4) is defined between the inner wall 421 and the outer wall 422 so as to extend along the first direction X1.

  As described above, the connection end portion 423 in each connection wall 42 is formed at the tip of the connection wall 42 protruding from the bottom plate 41, and the connection end surface 4230 which is a surface parallel to the bottom plate 41 is formed at the tip. ing. As shown in FIG. 6, the inner wall 421 in each connection wall 42 extends from the connection end portion 423 (see FIG. 3) to the bottom plate 41 side so as to be substantially orthogonal to the connection end surface 4230 and comes into contact with the accommodation space 44. The outer wall 422 on the side and on each connection wall 42 is located on the opposite side of the inner wall 421 across the perforation 420, and connects the connection end 423 so as to open the inner wall 421 and the perforation 420 in the second direction X2. The end surface 4230 is used as an apex and extends so as to be substantially orthogonal to the bottom plate 41.

  As shown in FIGS. 3 and 5, each isolation protrusion 424 on each connection wall 42 is connected to the connection end 423 so that the connection end 423 is spaced from each other to define a fitting recess 4240 together with the inner wall 421. Projecting from the inner wall 421 side of the portion 423 along the first direction X1. Then, each outer holding portion 425 in each connection wall 42 protrudes from the outer wall 422 side of the connection end portion 423 in the connection wall 42 so as to correspond to each fitting recess 4240 in the connection wall 42. At the same time, it is formed in a bifurcated shape.

  As shown in FIGS. 3 and 5, the connection end 423 in each connection wall 42 covers a part of the perforation 420 on the connection end surface 4230 while covering the opening in the connection end surface 4230 of the perforation 420 from the connection end surface 4230 side. Are formed so as to be aligned along the first direction X1. As shown in FIG. 5, in each connection wall 42, each through hole 426 corresponds to each outer holding portion 425 so that the axis coincides in the second direction X <b> 2, and each fitting recess 4240 also has each. It is arranged to correspond.

  As shown in FIG. 5, each terminal 5 is attached to each connection wall 42 in the peripheral wall 40 so as to be separated from each other in the first direction X <b> 1, and corresponds to each through hole 426 at the connection end 423 of each connection wall 42. It is arranged at each location, and further has a circumscribed portion 52, an inscribed portion 53, and an outer holding portion 425.

  As shown in FIG. 6, the circumscribed portion 52 of each terminal 5 protrudes from the bottom plate 41 to the outside of the case body 4. In the inscribed portion 53 (see FIG. 5) of each terminal 5 and the connection end surface 4230 of the corresponding connection wall 42, the connection end surface 4230 (FIG. 3) of the perforation 420 is fitted to the place where each through hole 426 is formed. The terminal opening 531 that covers the part of the corresponding through hole 426 and communicates with the through hole 426 is provided.

  That is, this will be described with reference to FIG. 5. The inscribed portion 53 covers a portion of the through hole 426 formed in a quadrangular shape in plan view except for the circular terminal opening 531.

  As shown in FIG. 3, the inner holding portions 51 of the respective terminals 5 protrude from the inner wall 421 side in the connection end surface 4230 corresponding to the respective outer holding portions 425 in the second direction X2, respectively. Each is fitted with a fitting recess 4240 and is further formed in a bifurcated shape.

  With the above structure, each terminal 5 in each connection wall 42 extends from the bottom plate 41 side through the inside of the outer wall 422 to the connection end 423 and then bends to the inner wall 421 side as shown in FIG. Further extending across the corresponding through hole 426 to the corresponding fitting recess 4240 (FIGS. 3 and 5).

  As shown in FIG. 3, each electronic component 3 accommodated in the package case 6 in this embodiment is wound around the frame 311 and an annular frame 311 installed in the accommodation space 44 of the case body 4. And a plurality of linear leads 312 that are electrically connected to the respective terminals 5. Further, as shown in FIG. 6, each lead 312 has an inner holding portion 51 of one terminal 5 and an outer holding portion 425 corresponding to the terminal 5 on the connection end surface 4230 of the connection wall 42 corresponding to the lead end portion 314. The terminals 5 are electrically connected to the terminals 5 so as to be fixed to the inscribed portion 53 (see FIG. 5) of the terminals 5. In addition, as each lead 312, a magnet wire subjected to electrical insulation coating for preventing a short circuit is used.

  Hereinafter, the process of attaching the lead 312 of each electronic component 3 to the corresponding terminal 5 in the electronic device of the present invention will be described in detail with reference to FIGS. FIG. 7 is a perspective view showing a main part of the electronic device according to the present invention in which the lead of the electronic component is installed in the package case. FIG. 8a shows the connection process for holding the lead of the present invention in the package case. FIG. 8B is a cross-sectional view of the main part showing the heating process of the lead in the package case of the present invention, and FIG. 8C is the connection process of the lead and the terminal of the present invention. FIG.

  When assembling the electronic device of the present invention, first, the terminals 5 are incorporated into the raw material of the case body 4 and then the plurality of electronic components 3 are installed in the accommodation space 44 in the injection molded package case 6. Next, as shown in FIGS. 7 and 8a, the lead end portions 314 of the leads 312 in the electronic components 3 are connected to the bifurcated inner connection portions 531 and the outer ends of the connection end surfaces 4230 of the package case 6, respectively. It is sandwiched and held between the connection portions 426.

  Subsequently, as shown in FIG. 8 b, one end of a plurality of pairs of laser processing heads 9 is irradiated from the connection end face 4230 side to each lead end 314 of each lead 312 held in the package case 6. The other end is heated from both sides so that each lead end 314 irradiates the terminal opening 531 in the corresponding terminal 5 from the perforation 420 side, and the electrically insulating coating attached to each lead end 314 is dissolved and removed. Further, irradiation of the laser processing head 9 concentrates heat on the lead end 314, so that damage to the case body 4 can be effectively suppressed. The irradiation of the laser processing head 9 can completely dissolve the electrically insulating coating of the lead end 314 depending on the output only from one side, but the lead end 314 may be dissolved together with the contents at a large output. Therefore, in order to remove the electrical insulation coating reliably and stably, it is preferable to carry out from both sides with a small output.

  Finally, as shown in FIG. 8c, when the lead end portion 314 of each lead 312 from which the electrical insulation coating has been removed is soldered and fixed to the inscribed portion 53 of the corresponding terminal 5, each electronic component Since the connection between 3 and the package case 6 is completed, the electronic device of the present invention can be installed on a circuit board and electrically connected to the electric circuit to function.

  According to the above structure, in the electronic device of the present invention, in each connection wall 42 of the peripheral wall 40 in the package case 6, the perforation 420 penetrating from the connection end surface 4230 to the bottom plate 41 is formed, and each terminal 5 is further provided. Since the terminal openings 531 communicating with the perforations 420 are provided, the lead end portions 314 of the respective leads 312 in the electronic component 3 are held on the respective connection walls 42 and then intensive heating means such as laser irradiation is used. The electrical insulation coating of each lead end 314 is removed from both sides of the connection end face 4230 and the perforation 420 without harming the case body 4, and immediately after that, each lead end 314 is connected to the corresponding terminal 5 by soldering. Therefore, the working time in the assembly process can be effectively shortened.

  As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to this, A various change is possible in the range which does not deviate from the summary.

  According to the above configuration, the electronic device according to the present invention can shorten the working time in the assembly process, and thus can realize more efficient production.

3 Electronic component 312 Lead 314 Lead end 4 Case body 40 Perimeter wall 41 Bottom plate 411 First side 412 Second side 42 Connection wall 420 Perforation 421 Inner wall 422 Outer wall 423 Connection end 424 Separation protrusion 4240 Fitting recess 425 Outside Holding portion 4230 Connection end surface 426 Through hole 43 Side wall 44 Accommodating space 5 Terminal 51 Inner holding portion 52 Outer portion 53 Inner portion 531 Terminal opening 6 Package case X1 First direction
X2 Second direction 9 Laser processing head

Claims (6)

In a package case comprising a case main body that can accommodate an electronic component having a linear lead, and a terminal that can be electrically connected to the lead of the electronic component to be accommodated,
The case body is
A plate-like bottom plate on which the electronic component can be placed;
A peripheral wall that protrudes from the periphery of the bottom plate and surrounds a space in which the electronic component can be accommodated together with the bottom plate
The peripheral wall is
It has a connecting end surface at the tip protruding from the bottom plate,
A perforation penetrating from the connection end surface to the bottom plate is formed,
The terminal is
Attached to the peripheral wall,
A circumscribing portion protruding from the bottom plate to the outside of the case body;
The connection end surface of the peripheral wall covers at least a part of the opening in the connection end surface of the perforation, and has an inscribed portion provided with a terminal opening communicating with the corresponding perforation. Package case. The bottom plate of the case body is
A pair of first sides extending along a predetermined first direction and parallel to each other;
Formed in a substantially parallelogram having a pair of second sides extending in a second direction substantially orthogonal to the first direction and parallel to each other;
The peripheral wall is
A pair of connecting walls formed on the pair of first sides of the substantially parallelogram;
A pair of side walls formed on the pair of second sides,
Each said connecting wall
A connection end portion having the connection end surface, substantially parallel to the bottom plate, and formed so that a plurality of through holes as a part of the perforations are arranged along the first direction;
An inner wall extending from the connection end portion toward the bottom plate so as to be substantially orthogonal to the connection end surface and in contact with the space;
An outer wall extending from the connection end portion toward the bottom plate so as to be substantially orthogonal to the connection end surface, and facing the space so that the perforation is defined between the connection end portion and the inner wall in the second direction. And
2. The package case according to claim 1, wherein the terminals are respectively attached to locations corresponding to the through holes in the connection end portions of the connection walls.   Each of the terminals protrudes from the inner wall side of the connection end surface of the corresponding connection wall, and has an inner holding portion formed in a bifurcated shape so as to be held by sandwiching a lead of the electronic component to be accommodated. The package case according to claim 2, wherein:   Each of the connection walls protrudes from the outer wall side of the connection end surface, and has a plurality of outer holding portions respectively corresponding to the inner holding portions of the terminals, and the outer holding portions are formed in a bifurcated shape. The package case according to claim 3, wherein a lead of the electronic component held by the corresponding inner holding portion can be held between the leads.   A package case according to claim 1, and a linear lead electrically connected to the terminal of the package case, and an electronic component housed in the case body. An electronic device characterized by that.   The package case according to any one of claims 2 to 4, and a linear lead that is electrically connected to each of the plurality of terminals of the package case, respectively, and in the case body A plurality of electronic components housed in the electronic device.